Lead Software Engineer (C#/React.js) - Top Trading Firm!
Senior/Lead Software Engineer (C#/React.js) - Top Trading Firm!
Location: London (Hybrid: 3 onsite/2 WFH)
Robert Half Ltd is representing this role.
One of the strongest engineering roles in London right now.
Are you looking for influence and autonomy?
Join a leading trading firm that is rebuilding its entire core platform from the ground up greenfield, modern, high-impact.
You'll be working directly with the CTO on mission-critical systems used across trading and structured products.
What You'll Work On:
- Full greenfield rebuild of Legacy trading systems
- Modern full-stack engineering: C#/.NET + React.js
- High-performance, multithreaded architectures
- Close collaboration with product, trading, and a 15+ engineering team
What We're Looking For:
- Strong C#/.NET engineering background
- Solid React.js (or modern JS with willingness to grow fast)
- Experience in financial services/trading systems
- Ownership mindset - hands-on, ideas-driven, and proactive
Interview Process (Fast Turnaround)
- CTO Intro
- Live Technical Test
- HR (Culture & Team Fit)
No visas sponsorship on offer, B2B/B2C contractors, or remote-only applicants.
This role requires hybrid working in London.
If this sounds like your next challenge, APPLY NOW!
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